Design and Research on Power Systems and Algorithms for Controlling Electric Underground Mining Machines Powered by Batteries

Kozłowski, Artur; Bołoz, Łukasz

doi:10.3390/en14134060

Cited by 9 publications

(8 citation statements)

References 24 publications

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“…More and more attention is paid to ergonomics and occupational safety [14]. A growing number of new solutions of machines and machine elements are being developed You can find articles of mechanized roadway supports [15], battery-powered machines [16], mulchers [17], mining automation and robotization [18] or automatic drilling rigs for mining and tunnelling [19]. From the beginning of the process of designing this type of machine, especially an articulated one, it is necessary to analyse the values of mass and the location of the centres of gravity of the key components in order to assess the stability of the entire machine.…”

Section: Literature Reviewmentioning

confidence: 99%

Assessment of the Stability of Bev Lhd Loader

Bołoz

Kozłowski

Horak

2022

Management Systems in Production Engineering

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The article concerns the computational model for analysing the stability of the BEV LHD loader. Works were carried out to develop an innovative, light battery-powered loader, which was the subject of an R&D project implemented in cooperation with Bumech S. A. Compared to the existing solutions of loaders with similar load capacity, this one is distinguished by the use of an individual electric drive in each wheel and a replaceable battery. A physical and mathematical model was developed taking into account the specificity of the BEV LHD loader. In the model, the masses of the battery, individual drives, the platform and excavated material are taken into account separately. The developed model allows determining the loader wheel pressure on the floor, depending on the location of its components’ centres of gravity, the turning angle of the machine, the amount of excavated material in the bucket and the position of the bucket. The input parameters also include the longitudinal and transverse excavation slope angles. In addition, the model enables determining the inner and outer turning radius of the loader. To verify the theoretical model, dynamic simulation tests were carried out. The results of simulation analyses confirmed the correctness of the developed theoretical model. The model was used to prepare a calculation sheet for analysing the stability on the basis of the adopted parameters. In the article, selected results of the conducted stability analyses have been presented, along with the proposed parameters ensuring the loader’s stability. The developed theoretical model enables a quick assessment of the loader’s stability, which, due to a number of innovative solutions, differs from existing designs. The structure of the loader at the design stage is subject to numerous modifications, which affect the distribution of the centres of gravity of individual components. The developed model of the loader is a useful, parameterized tool that allows assessing the stability and the values of the turning radii of the machine.

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Section: Literature Reviewmentioning

confidence: 99%

Assessment of the Stability of Bev Lhd Loader

Bołoz

Kozłowski

Horak

2022

Management Systems in Production Engineering

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“…They are the lowest underground battery-powered drilling and bolting rigs with onboard chargers. The machines can also be charged by external fast battery chargers [14]. Modern theories that make up the paradigm of sustainable development, and the best practices derived from them, are based on the consistency of individual and public needs, factors of economic growth and ecosystem protection [15].…”

Section: Discussionmentioning

confidence: 99%

Optimizing internal transport in terms of technical parameters in a mining company

Teplická¹,

Hurná²

2023

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The research scientific article summarizes the arguments within the scientific discussion on the issue of internal transport and machine park in mining companies. The machine park in mining companies is base of efective mining processes and optimal results of mining. The machine park in the mining company introduces a combination of stagnant and active equipment in the process of mining. The goal of this article is to reflect the innovative approach in the creation of internal transport by machine park in the mining company with the aim of increasing the reliability, safety, failures, and efficiency of mining equipment. The entity of the investigation was the selected mining company in Slovakia focused on limestone mining. Approach of research were focused on using comparative analysis of the technical parameters of mining machines and their technical performance. The relevance of the decision of this scientific research was connected with the innovation of a mining machine park focused on mobile machines with a combination of stationary machines. The article presents the results pointing to significant improvements in the machine park of the mining company. In this paper we suggest two alternatives (two models that monitor the factors as quality, costs, safety, reliability, and optimization of company resources, which are important for the optimal arrangement of equipments) of the composition of the machine park for a selected mining company with Mobil crusher Sandvik QJ341+, Mobile sorter McCloskey S130, Wheel loader CAT 972 M, and tracked excavator CAT 336F and second alternative Mobil crusher Hartl 12/65J, Mobile sorter Anaconda SR514, Wheel loader CAT 966 M and tracked excavator CAT 329E. The results of two alternatives of the machine park in a mining company can be recommendations for other mining companies in the area of building the machine park for mining processes and its optimization.

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“…Выполненный анализ технических и научных публикаций показывает, что в настоящее время аккумуляторный электрический привод находит все большее применение среди автономных горнотранспортных машин [1-3]. С развитием силовой электроники и применением новых литий-ионных электрохимических систем широкое распространение получило применение аккумуляторного привода на шахтных напочвенных локомотивах, карьерном специальном транспорте, подвесных монорельсовых дорогах [4][5][6]. Несмотря на значительный объем исследований в области синтеза и повышения эффективности работы горнотранспортных машин на аккумуляторной тяге, вопросам научно обоснованного определения мощности силовой установки и накопительного элемента с учетом условий эксплуатации и возможной рекуперации энергии торможения при движении на спусках уделено недостаточное внимание [7][8][9][10].…”

Section: анализ последних исследований и публикацийunclassified